Spinning-machine.



Nd.633,964. r Patented sept. 2s, |899.

wf-MGMIGHAEL SPINNING MACHINE.

(Abpucnion med mtu. 19, 1896,) (No Modal.)

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UNITED STATES y PATENT Ottica.

y WILLIAM MCMICHAEL, OF VlOONSOOKE'lQ-RHODE ISLAND: Y

yS,PINNlNG-MACHlNE.

sPEGIFlcArIoN forming partornetters Patent' No. 633,964, dai-.ea september 2e, 1899.

application nea nach i9, 1398. serai No. 674,435. maman.)

To @ZZ whom; t 1v1/(ty con/cern: Y

. Beit known that I, WILLIAM MoMlcnAnL,

of VVoonsocket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Spinning-Machines, of which the following'- is a specification. This inventionY has relation tofspinnin'gmachines, and has for its object to provide certain improvements therein by means of which the yarn or wool may be drawn out or red uced uniformly and evenly to a greater extent and with greater efticiency than heretofore. Y

To this'end the invention consists of a spinning-machine provided with certain improvements illustrated upon the drawings n and which I shall now proceed to describe in detail and then point ont in the claims hereunto annexed.

Reference is to' berhad to the accompanying drawings, and to the letters and figures marked thereon, forming a part of this speciication, the same letters and gures designating the same parts or features, as the case may be, wherever they occur.

Of the drawings, Figure l represents a portion of a spinning-machine lequipped kwith my improvements. Fig. 2 represents in longitudinal vertical section a twister head constructed in accordance with the invention.

.and ll illustrate other embodiments of which the invention is susceptible.v

Referring to the drawings, a indicates the standard or frame of the machine, upon the upper portion of which are mounted supports a for the top rolls a2 a2, the yarn being guided thereto by suitable means.

It will be understood that although I have shown only one set of rolls a2 they are arranged in series along the top of the frame, so that a large number of threads' are spun at the same time. These top rolls a2 c2 are driven intermittingly by any of the means (not shown) which are ordinarily employed for this purpose, and the yarn passes theregreaterthan a right angle. consists of a tubular spindle el, formed with f a whirl d', by means of Vwhich it is driven, fand atits lower end is provided with two *gripping-jaws cl2 di', one of which is-movable.

The movable jaw cl3 is pivoted tothe twister-p mounted upon the frame ct and is arranged at a slight inclination relatively to the plane of the axes'of the toprolls, so that the yarn 2 is at 'an angle to the axis oi' thehead alittle The twister-head head at di and is provided with an offset or outwardlyprojecting portion df", from which a'pin d6 extends upwardly.

The weight is adjustablysecured to the pin d6, sc thatwhen the spindle or head is rotated theweight is thrown ont kby centrifugal action andi the yarn or thread is ,gripped between thetwo jaws, the pressure of the movable jaw against the stationary jaw being Vvaried in accordance with the speed at which wthe head is rotated., j 1 v f Thenupper end of the spindle is elongated and iis'y providedwith a projection or pin e, arranged `longitudinally of the spindleand to one sidejof the central longitudinalline, so

as to permit the yarn or thread topass out `through the central aperture in the spindle.

thethread is twisted evenly and uniformly, as previously stated, from the jaws to the top ldrawing-rolls and not from the top of the spindle to the drawing-rolls, leaving the portion between the top of the spindle and the Vith this construction l lOO grippers untwisted. By this means the thread is prevented from being broken and at the same time is drawn out to the desired extent.

It is evident that the twister-head may be inodiiied in various ways without departing from the spirit and scope of the invention. For instance, in Figs. 5 and 6 the projection is shown as substantially annular and extends almost entirely around the end of the spindle, forming, as it were, a notch c', the projection itself being indicated at c2. NVhen the spindle formed in this way is rotated, the thread is held by the end wall of 'the projection e2 until the spindle has nearly completed a halfrevolution, 'when it is released, allowing the thread to slacken and pass in its twisted state through the spindle.

In Figs. 7 and 8 the projection is shown in the form of a bent pin e3, having a portion eX- tending tangcntially to a circle drawn about the central longitudinal line of the spindle. The operation of this device is substantially similar to those hereinbefore described in that the rapid rotation of the spindle causes the projection to draw thread by intermittently engaging and releasing it.

In Figs. 9, l0, and`ll I have illustrated another embodiment of the invention, in which the pin or projection is arranged radially of the spindle and 'projects into the aperture ,through the same. In this instance the pin is indicated at e4, and its end lies substantially in the central longitudinal line of the spindle.

In all of these devices, as previously stated, the projection or drawing-ont device which rotates in unison with the gripper engages the thread or yarn rapidly and draws it out, the central longitudinal aperture through the spindle being large enough to permit of the passage of the twisted thread therethrough, whereby the thread is twisted at all points between the top rolls and the lower drawingrolls. This is an importan t advantage which is peculiar to my invention, for in all previous devices in which the thread-drawing and the thread-twisting parts were rotated in unison that part of the thread between them remained nntwisted and was liable to be broken Linder the strain.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all of the modes oi its use, I declare that what I claim is- 1. A spinning-machine comprising top rolls, lower drawing-rolls, and a twister-head provided at one end with a gripping device for the thread and at the other end with adrawing-out device which rotates in unison with the gripping device arranged to intermittingly engage and yrelease the thread, and an enlarged open-ended through-aperture,whereby the thread is twisted at all points between the said rolls.

2. A twister-head consisting of a spindle having a thread-engaging device at its lower end, an aperture extending through the central longitudinal lines thereof, and sufciently large to permit of the passage of twisted thread, and means on the other end of the spindle rotating in unison with the threadengaging devices for intermittingly engaging and releasing the thread, whereby said thread is twisted at all points between the top rolls and the lower rolls.

3. A twister-head consisting of a spindle having an enlarged central aperture, means on the lower end of the spindle for engaging and twisting the thread, and a projection on the upper end of the spindle for intermittently engaging and releasing and thereby intermittingly engaging and disengaging the thread, whereby said thread is twisted at `all points between the top rolls and the lower drawing-rolls.

In testimony whereof I affix my signature in presence ofl two witnesses.

' IVILLIAM INICMIOHAEL.

A. D. HARRISON, P. W. PEZZETTI. 

